CN105758073B - Refrigeration plant and its quickly cooling control method - Google Patents
Refrigeration plant and its quickly cooling control method Download PDFInfo
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- CN105758073B CN105758073B CN201610119727.0A CN201610119727A CN105758073B CN 105758073 B CN105758073 B CN 105758073B CN 201610119727 A CN201610119727 A CN 201610119727A CN 105758073 B CN105758073 B CN 105758073B
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- refrigeration
- air door
- choke valve
- temperature
- time
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
- F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
- F25D17/065—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators with compartments at different temperatures
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/003—Arrangement or mounting of control or safety devices for movable devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/05—Refrigerant levels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/11—Fan speed control
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
- F25B2600/2513—Expansion valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
- F25D2400/28—Quick cooling
Abstract
The invention discloses a kind of quickly cooling control method of refrigeration plant, comprise the following steps：When refrigeration plant, which enters cooling pattern, to be run, environment temperature is detected, and the target aperture of choke valve is obtained according to environment temperature；The rotating speed of target of blower fan is obtained according to target aperture, and the most long opening time of air door and most short shut-in time are refrigerated according to corresponding to the rotating speed of target of target aperture and blower fan obtains blower fan；Choke valve is controlled according to the target aperture of choke valve and blower fan is controlled according to the rotating speed of target of blower fan to adjust the refrigerating capacity into refrigerating chamber, and refrigeration air door is controlled to control the refrigeration run time of refrigeration plant according to most long opening time and most short shut-in time.The quickly cooling control method can control enters the refrigerating capacity of refrigerating chamber to greatest extent on the basis of throttle valve adjustment function is played, and controls the refrigeration run time of refrigeration plant, prevents the food of frostbite refrigerating chamber under cooling pattern.The invention also discloses a kind of refrigeration plant.
Description
Technical field
The present invention relates to refrigeration technology field, the quickly cooling control method of more particularly to a kind of refrigeration plant and a kind of refrigeration
Equipment.
Background technology
At present, refrigerator industry develops towards directions such as big volume, intellectualities, and most of refrigerators are still using most original
Capillary is as throttling arrangement.Capillary as the refrigerating capacitys such as refrigerator, domestic air conditioner in below 10kW refrigeration system often
Decompression throttle part, it has the advantages that simple in construction, cost is cheap, and refrigerant hardly possible leaks, but it is adjusted in variable working condition
It is weak to save power, small regulation can only be done to cooling system agent flux.When system loading changes greatly, refrigerating chamber temperature just occurs
Degree does not reach design temperature for a long time, and then influences the quality of storage food.
However, when electric expansion valve is applied in refrigerator, although electric expansion valve can with regulating system refrigerant flow,
It can realize in the short time and substantial amounts of cold is provided into casing, but the risk of frostbite food, particularly cooling pattern be present
Under, greatly improving for Temperature drop in refrigerator speed easilys lead to food frost bitten.
The content of the invention
It is contemplated that at least solves one of technical problem in above-mentioned technology to a certain extent.Therefore, the present invention
One purpose is the quickly cooling control method for proposing a kind of refrigeration plant, can be on the basis of throttle valve adjustment function is played most
The refrigerating capacity into refrigerating chamber is controlled to limits, and controls the refrigeration run time of refrigeration plant, prevents from freezing under cooling pattern
Hinder the food of refrigerating chamber.
It is another object of the present invention to propose a kind of refrigeration plant.
To reach above-mentioned purpose, one aspect of the present invention embodiment proposes a kind of quickly cooling control method of refrigeration plant, its
In, condenser, the entrance with the compressor that the refrigeration plant includes compressor, is connected with the outlet of the compressor
The evaporator that is connected, the choke valve being arranged between the outlet of the condenser and the entrance of the evaporator, with the steaming
The blower fan that hair device is correspondingly arranged, the described method comprises the following steps：When the refrigeration plant, which enters cooling pattern, to be run, detection
Environment temperature, and according to the target aperture of the environment temperature acquisition choke valve；According to the target aperture of the choke valve
Obtain the rotating speed of target of the blower fan, and described in target aperture according to the choke valve and the rotating speed of target of the blower fan obtain
The most long opening time of refrigeration air door and most short shut-in time corresponding to blower fan；According to the target aperture of the choke valve to described
Choke valve is controlled and the blower fan is controlled according to the rotating speed of target of the blower fan to adjust the system into refrigerating chamber
Cold, and the refrigeration air door is controlled to control according to the most long opening time and most short shut-in time of the refrigeration air door
Make the refrigeration run time of the refrigeration plant.
The quickly cooling control method of refrigeration plant according to embodiments of the present invention, run in refrigeration plant into cooling pattern
When, the target aperture of choke valve is obtained by detecting environment temperature, and the mesh of blower fan is obtained according to the target aperture of choke valve
Rotating speed is marked, and the rotating speed of target of target aperture according to choke valve and blower fan obtains refrigeration the most long of air door corresponding to blower fan and opened
Time and most short shut-in time are opened, then according to the target aperture of choke valve choke valve is controlled and the target according to blower fan
Rotating speed is controlled to blower fan so that refrigerant flow is associated with air quantity, so as to adjust the refrigerating capacity into refrigerating chamber, meets
Refrigeration capacity requirement of the refrigeration plant under cooling pattern, finally according to the most long opening time of refrigeration air door and most short shut-in time
Refrigeration air door is controlled to control the refrigeration run time of refrigeration plant, so as to prevent refrigeration long operational time
And cause the phenomenon of frostbite food, and the phenomenon that air door frequently switches on can be avoided the occurrence of.
According to one embodiment of present invention, the target aperture of the choke valve is obtained according to the environment temperature, including：
Judge the temperature range residing for the environment temperature；Temperature range according to residing for the environment temperature obtains the choke valve
Target aperture.
According to one embodiment of present invention, the choke valve can be electric expansion valve.
According to one embodiment of present invention, according to the most long opening time of the refrigeration air door and most short shut-in time pair
The refrigeration air door is controlled, including：When the opening time of the refrigeration air door reaching the most long opening time, control
The refrigeration air door is closed, and when the shut-in time of the refrigeration air door being more than the most short shut-in time, control is described cold
Air door is hidden to be again turned on.
According to one embodiment of present invention, when being controlled to the refrigeration air door, the speed of described refrigeration plant
Cooling control method also includes：Detect the temperature in the refrigerating chamber；Closed when the temperature in the refrigerating chamber reaches default air door
When closing temperature, the refrigeration air door is controlled to close, and when the temperature in the refrigerating chamber reaches default door opening temperature,
The refrigeration air door is controlled to be again turned on.
To reach above-mentioned purpose, a kind of refrigeration plant that another aspect of the present invention embodiment proposes, including：Compressor；With
The condenser that the outlet of the compressor is connected；The evaporator being connected with the entrance of the compressor；It is arranged on described cold
Choke valve between the outlet of condenser and the entrance of the evaporator；The blower fan being correspondingly arranged with the evaporator；With the wind
The refrigeration air door that machine is correspondingly arranged；First temperature detecting module, first temperature detecting module are used to detect environment temperature；Control
Molding block, the control module is used to enter in the refrigeration plant obtains institute when cooling pattern is run according to the environment temperature
The target aperture of choke valve is stated, and the rotating speed of target of the blower fan is obtained according to the target aperture of the choke valve, and according to
The rotating speed of target of the target aperture of the choke valve and the blower fan obtains most long opening time of the refrigeration air door and most short
Shut-in time, wherein, the choke valve is controlled always according to the target aperture of the choke valve for the control module and root
The blower fan is controlled to adjust the refrigerating capacity into refrigerating chamber, and according to the refrigeration according to the rotating speed of target of the blower fan
The most long opening time and most short shut-in time of air door are controlled to control the cold of the refrigeration plant to the refrigeration air door
Hide run time.
Refrigeration plant according to embodiments of the present invention, when entering cooling pattern operation, control module passes through the first temperature
Detection module detects environment temperature to obtain the target aperture of choke valve, and the mesh of blower fan is obtained according to the target aperture of choke valve
Rotating speed is marked, and the rotating speed of target of target aperture according to choke valve and blower fan obtains refrigeration the most long of air door corresponding to blower fan and opened
Time and most short shut-in time are opened, then according to the target aperture of choke valve choke valve is controlled and the target according to blower fan
Rotating speed is controlled to blower fan so that refrigerant flow is associated with air quantity, so as to adjust the refrigerating capacity into refrigerating chamber, meets
Refrigeration capacity requirement of the refrigeration plant under cooling pattern, finally according to the most long opening time of refrigeration air door and most short shut-in time
Refrigeration air door is controlled to control the refrigeration run time of refrigeration plant, so as to prevent refrigeration long operational time
And cause the phenomenon of frostbite food, and the phenomenon that air door frequently switches on can be avoided the occurrence of.
According to one embodiment of present invention, the control module obtains the mesh of the choke valve according to the environment temperature
When marking aperture, the temperature range residing for the environment temperature is judged, and the temperature range according to residing for the environment temperature obtains
The target aperture of the choke valve.
According to one embodiment of present invention, the choke valve can be electric expansion valve.
According to one embodiment of present invention, the control module is according to most long opening time and most of the refrigeration air door
When the short shut-in time is controlled to the refrigeration air door, wherein, reach described most long when the opening time of the refrigeration air door
During the opening time, the control module control refrigeration air door is closed, and when the shut-in time of the refrigeration air door is more than institute
When stating the most short shut-in time, the control module control refrigeration air door is again turned on.
According to one embodiment of present invention, described refrigeration plant also includes：Second temperature detection module, described second
Temperature detecting module is used to detect the temperature in the refrigerating chamber when being controlled the refrigeration air door, wherein, when described
When temperature in refrigerating chamber reaches default air door closing temperature, the control module control refrigeration air door is closed, and is worked as
When temperature in the refrigerating chamber reaches default door opening temperature, the control module control refrigeration air door is opened again
Open.
Brief description of the drawings
Fig. 1 is the structural representation of refrigeration plant according to an embodiment of the invention；
Fig. 2 is the flow chart of the quickly cooling control method of refrigeration plant according to embodiments of the present invention.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
The quickly cooling control method and refrigeration of the refrigeration plant that it is proposed according to embodiments of the present invention described with reference to the accompanying drawings
Equipment.
First, as shown in figure 1, refrigeration plant according to an embodiment of the invention includes compressor 10 and compressor 10
Outlet be connected condenser 20, be connected with the entrance of compressor evaporator 30, be arranged on the outlet of condenser 20 with
The blower fan 50 that choke valve 40 and evaporator 30 between the entrance of evaporator 30 are correspondingly arranged.
Wherein, blower fan 50 can be variable rotating speed fan, and choke valve 40 can be electric expansion valve.Also, as shown in figure 1,
Capillary 60 is additionally provided between electric expansion valve and condenser, capillary 60 forms the refrigeration plant with electric expansion valve
Throttling arrangement.
That is, in the present embodiment, the refrigeration plant is a kind of refrigerator using electric expansion valve, the spy of the refrigerator
Point is to connect to be introduced into hair after condenser outflow as the throttling arrangement of system, refrigerant using electric expansion valve with capillary
Tubule, electric expansion valve is passed through afterwards, finally flows into evaporator.Wherein electronic expansion valve regulation flow principle is electronics control
Device processed controls the rotation of rotor part, by the transmission of screw mandrel and nut, by rotor portions by sending pulse signal to coil
The convert rotational motion of part is that needle moves linearly vertically, so as to adjust the flow area of valve port, and then adjusts refrigerant
Flow, while stop dog part is moved up and down by slip ring and controls valve needle movements stroke, so as to ensure valve all the time in defined arteries and veins
Moved in punching.Such as when valve pulse pulse change from 0 to 350, refrigerant flow changes to M (setting flow value) from 0, certain two
Person is non-linear variation.
Secondly, as shown in Fig. 2 the quickly cooling control method of the refrigeration plant of the embodiment of the present invention comprises the following steps：
S1, when refrigeration plant, which enters cooling pattern, to be run, environment temperature is detected, and choke valve is obtained according to environment temperature
Target aperture.
Wherein, the local environment temperature of refrigeration plant such as refrigerator can be detected by temperature sensor.
According to one embodiment of present invention, in step S1, the target of the choke valve is obtained according to the environment temperature
Aperture, including：Judge the temperature range residing for the environment temperature；Temperature range according to residing for the environment temperature obtains institute
State the target aperture of choke valve.
Specifically, when choke valve is electric expansion valve, valve body aperture is primarily referred to as the valve opening umber of pulse of electric expansion valve,
Under cooling pattern, the valve opening pulse of electric expansion valve is mainly determined by environment temperature, such as can to preset three electronics swollen
Swollen valve valve opening umber of pulse A, B and C is with suitable for varying environment temperature range, i.e.,：A is applied to environment temperature and is less than or equal to 20 DEG C,
Wherein 280≤A≤300；B is applied to environment temperature and is less than or equal to 30 DEG C and more than 20 DEG C, wherein 200≤B≤220；C is applied to
Environment temperature is more than 30 DEG C, wherein 150≤C≤160.
S2, the rotating speed of target of blower fan is obtained according to the target aperture of choke valve, and according to the target aperture and wind of choke valve
The rotating speed of target of machine obtains the most long opening time of refrigeration air door and most short shut-in time corresponding to blower fan.
According to one embodiment of present invention, the rotating speed of blower fan and the voltage of blower fan are corresponding, so, can preset electricity
The aperture of corresponding relation and electric expansion valve and the voltage of blower fan between the aperture of sub- expansion valve and the voltage of blower fan with it is cold
The corresponding relation between most long opening time of air door, most short shut-in time is hidden, so as to be obtained by the aperture of electric expansion valve
Corresponding blower voltage is taken, and refrigeration the most long of air door can be obtained by the aperture of electric expansion valve and corresponding blower voltage and opened
Open time and most short shut-in time.For example, the aperture of electric expansion valve, the voltage of blower fan under the cooling pattern of varying environment temperature
And the relation between the most long opening time of refrigeration air door and most short shut-in time is as shown in table 1 below.
Table 1
| Environment temperature≤20 | 20 ＜ environment temperature≤30 | 30 ＜ environment temperatures | |
| Valve body aperture | A | B | C |
| The voltage of blower fan | V1 | V2 | V3 |
| The most long opening time | Ton1 | Ton2 | Ton3 |
| The most short shut-in time | Toff1 | Toff2 | Toff3 |
In table 1, voltage V1, V2 and V3 of blower fan at a temperature of respective environment, refrigeration air door can be set according to experimental data
Most long opening time Ton1、Ton2And Ton3And most short shut-in time T of refrigeration air dooroff1、Toff2And Toff3, wherein, 8V ＜ V1 ＜
V2 ＜ V3 ＜ 11.5V, 30min ＜ Ton1＜ Ton2＜ Ton3, 15min ﹥ Toff1﹥ Toff2﹥ Toff3。
S3, choke valve is controlled according to the target aperture of choke valve and blower fan carried out according to the rotating speed of target of blower fan
Control enters the refrigerating capacity of refrigerating chamber to adjust, and according to the most long opening time and most short shut-in time for refrigerating air door to refrigeration
Air door is controlled to control the refrigeration run time of refrigeration plant.
Therefore say, in an embodiment of the present invention, in the probability and spin manifold temperature of balanced refrigerating chamber storage food frost bitten
, can be by adjusting the aperture of electric expansion valve, the rotating speed of blower fan and the unlatching and the pass that refrigerate air door on the basis of reducing speed
Close the time, come reach can fast cooling, and can prevent the purpose of chilled food frost bitten.
Wherein, in step s3, according to the most long opening time of the refrigeration air door and most short shut-in time to described cold
Air door is hidden to be controlled, including：When the opening time of the refrigeration air door reaching the most long opening time, control is described cold
Hide air door to close, and when the shut-in time of the refrigeration air door being more than the most short shut-in time, control the refrigeration air door
It is again turned on.
Also, when being controlled to refrigeration air door, the quickly cooling control method of above-mentioned refrigeration plant also includes：Detect cold
Hide indoor temperature；When the temperature in the refrigerating chamber reaches default air door closing temperature, the refrigeration air door is controlled to close
Close, and when the temperature in the refrigerating chamber reaches default door opening temperature, control the refrigeration air door to be again turned on.Its
In, the temperature in refrigerating chamber can be detected by temperature-sensing element.
Specifically, according to the example of the present invention, when environment temperature is 25 DEG C, if refrigeration plant such as clamshell doors
Wind cooling refrigerator is run into cooling pattern, then the aperture pulse for controlling electric expansion valve is B pulses, while the voltage change of blower fan
For V2, reach T whenever the opening time of refrigeration air dooron2Or temperature-sensing element detects that the temperature in refrigerating chamber reaches default wind
During door closing temperature, then refrigeration air door is closed, when the temperature that temperature-sensing element is detected in refrigerating chamber reaches default door opening
The shut-in time of temperature or refrigeration air door is more than Toff2When, then it is again turned on refrigerating air door, until refrigeration plant exits quickly cooling mould
Formula.
In summary, in an embodiment of the present invention, first, electric expansion valve introducing refrigerator can be realized into cooling system
Agent flux is adjusted, and realizes that refrigerator can efficiently tackle various loads, and it is slow etc. to avoid the occurrence of under high load working condition Temperature drop in refrigerator speed
Problem.Secondly, while the aperture of electric expansion valve and the rotating speed of blower fan are adjusted, are associated cooling system agent flux and air quantity,
Increase the cooling pattern lower unit interval into the refrigerating capacity of refrigerating chamber, meet refrigeration of the refrigerator under cooling pattern under each circumstance temperature
Amount demand.Finally, the most long unlatching and most short shut-in time that air door is refrigerated by setting control the cold of refrigerator under cooling pattern
Run time is hidden, refrigeration long operational time is prevented and causes the phenomenon of frostbite storage food, and by controlling refrigeration to shut down
Time is to prevent the phenomenon that frequently switches on of refrigeration air door.
The quickly cooling control method of refrigeration plant according to embodiments of the present invention, run in refrigeration plant into cooling pattern
When, the target aperture of choke valve is obtained by detecting environment temperature, and the mesh of blower fan is obtained according to the target aperture of choke valve
Rotating speed is marked, and the rotating speed of target of target aperture according to choke valve and blower fan obtains refrigeration the most long of air door corresponding to blower fan and opened
Time and most short shut-in time are opened, then according to the target aperture of choke valve choke valve is controlled and the target according to blower fan
Rotating speed is controlled to blower fan so that refrigerant flow is associated with air quantity, so as to adjust the refrigerating capacity into refrigerating chamber, meets
Refrigeration capacity requirement of the refrigeration plant under cooling pattern, finally according to the most long opening time of refrigeration air door and most short shut-in time
Refrigeration air door is controlled to control the refrigeration run time of refrigeration plant, so as to prevent refrigeration long operational time
And cause the phenomenon of frostbite food, and the phenomenon that air door frequently switches on can be avoided the occurrence of.
In addition, embodiments of the invention also proposed a kind of refrigeration plant, it includes compressor, the outlet phase with compressor
The condenser of connection, the evaporator being connected with the entrance of compressor, the outlet for being arranged on condenser and evaporator entrance it
Between choke valve, be correspondingly arranged with evaporator blower fan, be correspondingly arranged with blower fan refrigeration air door, the first temperature detecting module example
Such as temperature sensor and control module.
First temperature detecting module is used to detect environment temperature, and control module is used to enter quickly cooling mould in the refrigeration plant
The target aperture of the choke valve is obtained when formula is run according to the environment temperature, and is obtained according to the target aperture of the choke valve
Take the rotating speed of target of the blower fan, and described in target aperture according to the choke valve and the rotating speed of target of the blower fan obtain
The most long opening time of air door and most short shut-in time are refrigerated, wherein, target of the control module always according to the choke valve
Aperture is controlled to the choke valve and the blower fan is controlled to adjust entrance according to the rotating speed of target of the blower fan
The refrigerating capacity of refrigerating chamber, and the refrigeration air door is entered according to the most long opening time and most short shut-in time of the refrigeration air door
Row is controlled to control the refrigeration run time of the refrigeration plant.
According to one embodiment of present invention, when control module obtains the target aperture of choke valve according to environment temperature, sentence
Temperature range residing for disconnected environment temperature, and the temperature range according to residing for environment temperature obtains the target aperture of choke valve.
Wherein, choke valve can be electric expansion valve, and refrigeration plant can be refrigerator such as Double-door air-cooling refrigerator, refrigerator-freezer
Deng.
Specifically, when choke valve is electric expansion valve, the aperture of choke valve is primarily referred to as the valve opening arteries and veins of electric expansion valve
Number is rushed, under cooling pattern, the valve opening pulse of electric expansion valve is mainly determined by environment temperature, such as can preset three electricity
Sub- expansion valve valve opening umber of pulse A, B and C is with suitable for varying environment temperature range, i.e.,：A is applied to environment temperature and is less than or equal to 20
DEG C, wherein 280≤A≤300；B is applied to environment temperature and is less than or equal to 30 DEG C and more than 20 DEG C, wherein 200≤B≤220；C is fitted
It is more than 30 DEG C for environment temperature, wherein 150≤C≤160.
According to one embodiment of present invention, the control module is according to most long opening time and most of the refrigeration air door
When the short shut-in time is controlled to the refrigeration air door, wherein, reach described most long when the opening time of the refrigeration air door
During the opening time, the control module control refrigeration air door is closed, and when the shut-in time of the refrigeration air door is more than institute
When stating the most short shut-in time, the control module control refrigeration air door is again turned on.
Also, above-mentioned refrigeration plant also includes second temperature detection module such as temperature-sensing element, the second temperature inspection
Module is surveyed to be used to detect the temperature in the refrigerating chamber when being controlled the refrigeration air door, wherein, when the refrigerating chamber
When interior temperature reaches default air door closing temperature, the control module control refrigeration air door is closed, and when described cold
When the indoor temperature in Tibetan reaches default door opening temperature, the control module control refrigeration air door is again turned on.
That is, the refrigeration plant of the embodiment of the present invention is when entering cooling pattern operation, electric expansion valve and blower fan
Different apertures and voltage (corresponding rotating speed) are set according to environment temperature, are associated cooling system agent flux and rotation speed of fan,
Realize that entering refrigerating capacity in casing in the unit interval maximizes, and on this basis in order to prevent frostbite chilled food, specially sets
The most long opening time of air door and most short shut-in time are refrigerated, by adjusting refrigeration operation and the dwell time of refrigeration plant, is kept away
Exempt from frostbite storage food and blower fan frequently switches on.
Refrigeration plant according to embodiments of the present invention, when entering cooling pattern operation, control module passes through the first temperature
Detection module detects environment temperature to obtain the target aperture of choke valve, and the mesh of blower fan is obtained according to the target aperture of choke valve
Rotating speed is marked, and the rotating speed of target of target aperture according to choke valve and blower fan obtains refrigeration the most long of air door corresponding to blower fan and opened
Time and most short shut-in time are opened, then according to the target aperture of choke valve choke valve is controlled and the target according to blower fan
Rotating speed is controlled to blower fan so that refrigerant flow is associated with air quantity, so as to adjust the refrigerating capacity into refrigerating chamber, meets
Refrigeration capacity requirement of the refrigeration plant under cooling pattern, finally according to the most long opening time of refrigeration air door and most short shut-in time
Refrigeration air door is controlled to control the refrigeration run time of refrigeration plant, so as to prevent refrigeration long operational time
And cause the phenomenon of frostbite food, and the phenomenon that air door frequently switches on can be avoided the occurrence of.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " be based on orientation shown in the drawings or
Position relationship, it is for only for ease of and describes the present invention and simplify description, rather than indicates or imply that signified device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the invention, " multiple " are meant that at least two, such as two, three
It is individual etc., unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or electrically connect；Can be joined directly together, can also be indirectly connected by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements, limited unless otherwise clear and definite.For one of ordinary skill in the art
For, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with "above" or "below" second feature
It is that the first and second features directly contact, or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height and is less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office
Combined in an appropriate manner in one or more embodiments or example.In addition, in the case of not conflicting, the skill of this area
Art personnel can be tied the different embodiments or example and the feature of different embodiments or example described in this specification
Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changed, replacing and modification.
Claims (8)
1. the quickly cooling control method of a kind of refrigeration plant, it is characterised in that the refrigeration plant includes compressor and the compression
Condenser that the outlet of machine is connected, the evaporator being connected with the entrance of the compressor, it is arranged on going out for the condenser
The blower fan that choke valve and the evaporator between mouth and the entrance of the evaporator are correspondingly arranged, wherein, the choke valve is
Electric expansion valve, it the described method comprises the following steps：
When the refrigeration plant, which enters cooling pattern, to be run, environment temperature is detected, and according to obtaining the environment temperature
The target aperture of choke valve；
The rotating speed of target of the blower fan is obtained according to the target aperture of the choke valve, and according to the target aperture of the choke valve
Obtained with the rotating speed of target of the blower fan and the most long opening time of air door and most short shut-in time are refrigerated corresponding to the blower fan；
The choke valve is controlled according to the target aperture of the choke valve and according to the rotating speed of target of the blower fan to institute
Blower fan is stated to be controlled to adjust the refrigerating capacity into refrigerating chamber, and according to refrigeration most long opening time of air door and most short
Shut-in time is controlled to control the refrigeration run time of the refrigeration plant to the refrigeration air door.
2. the quickly cooling control method of refrigeration plant according to claim 1, it is characterised in that according to the environment temperature
The target aperture of the choke valve is obtained, including：
Judge the temperature range residing for the environment temperature；
Temperature range according to residing for the environment temperature obtains the target aperture of the choke valve.
3. the quickly cooling control method of refrigeration plant according to claim 1, it is characterised in that according to the refrigeration air door
The most long opening time and the most short shut-in time to it is described refrigeration air door be controlled, including：
When the opening time of the refrigeration air door reaching the most long opening time, the refrigeration air door is controlled to close, and work as
When the shut-in time of the refrigeration air door is more than the most short shut-in time, the refrigeration air door is controlled to be again turned on.
4. the quickly cooling control method of refrigeration plant according to claim 3, it is characterised in that to the refrigeration air door
When being controlled, in addition to：
Detect the temperature in the refrigerating chamber；
When the temperature in the refrigerating chamber reaches default air door closing temperature, the refrigeration air door is controlled to close, and work as institute
When stating the temperature in refrigerating chamber and reaching default door opening temperature, the refrigeration air door is controlled to be again turned on.
A kind of 5. refrigeration plant, it is characterised in that including：
Compressor；
The condenser being connected with the outlet of the compressor；
The evaporator being connected with the entrance of the compressor；
The choke valve being arranged between the outlet of the condenser and the entrance of the evaporator, wherein, the choke valve is electricity
Sub- expansion valve；
The blower fan being correspondingly arranged with the evaporator；
The refrigeration air door being correspondingly arranged with the blower fan；
First temperature detecting module, first temperature detecting module are used to detect environment temperature；
Control module, the control module are used to enter when cooling pattern is run according to the environment temperature in the refrigeration plant
The target aperture of the choke valve is obtained, and the rotating speed of target of the blower fan is obtained according to the target aperture of the choke valve, with
And the most long opening time of the refrigeration air door is obtained according to the target aperture of the choke valve and the rotating speed of target of the blower fan
The most short shut-in time, wherein, the control module is controlled always according to the target aperture of the choke valve to the choke valve
Make and the blower fan is controlled to adjust the refrigerating capacity into refrigerating chamber, and according to institute according to the rotating speed of target of the blower fan
The most long opening time and most short shut-in time for stating refrigeration air door are controlled to the refrigeration air door to control the refrigeration to set
Standby refrigeration run time.
6. refrigeration plant according to claim 5, it is characterised in that the control module obtains according to the environment temperature
During the target aperture of the choke valve, the temperature range residing for the environment temperature is judged, and according to residing for the environment temperature
Temperature range obtain the target aperture of the choke valve.
7. refrigeration plant according to claim 5, it is characterised in that the control module refrigerates air door most according to described
When long opening time and most short shut-in time are controlled to the refrigeration air door, wherein,
When the opening time of the refrigeration air door reaching the most long opening time, the control module controls the refrigeration wind
Door is closed, and when the shut-in time of the refrigeration air door being more than the most short shut-in time, described in the control module control
Refrigeration air door is again turned on.
8. refrigeration plant according to claim 7, it is characterised in that also include：
Second temperature detection module, the second temperature detection module are used to detect institute when being controlled the refrigeration air door
The temperature in refrigerating chamber is stated, wherein, when the temperature in the refrigerating chamber reaches default air door closing temperature, the control mould
The block control refrigeration air door is closed, and when the temperature in the refrigerating chamber reaches default door opening temperature, the control
The molding block control refrigeration air door is again turned on.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610119727.0A CN105758073B (en) | 2016-03-02 | 2016-03-02 | Refrigeration plant and its quickly cooling control method |
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| CN201610119727.0A CN105758073B (en) | 2016-03-02 | 2016-03-02 | Refrigeration plant and its quickly cooling control method |
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| CN105758073B true CN105758073B (en) | 2018-02-13 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106766299A (en) * | 2016-12-29 | 2017-05-31 | 青岛海尔股份有限公司 | The control method of refrigerating plant, the refrigerator with the refrigerating plant and refrigerator |
| CN106766535B (en) * | 2016-12-29 | 2019-05-31 | 青岛海尔股份有限公司 | A kind of control method of refrigerator |
| CN107490233B (en) * | 2017-08-04 | 2020-04-07 | 南京创维家用电器有限公司 | Control method for preventing refrigerating chamber from freezing, storage medium and refrigerator |
| CN112682988B (en) * | 2020-12-28 | 2022-05-17 | 江苏拓米洛环境试验设备有限公司 | Control method and device for refrigerant flow and refrigeration equipment |
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| US3759053A (en) * | 1971-12-15 | 1973-09-18 | Westinghouse Electric Corp | Air control for fresh food compartment quick chill operation |
| CN1743775A (en) * | 2005-09-23 | 2006-03-08 | 海信集团有限公司 | Air-cooled variable frequency refrigerator and its control method |
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| CN104534803A (en) * | 2014-12-18 | 2015-04-22 | 合肥美的电冰箱有限公司 | Refrigerator and air capacity control method and device thereof |
| CN104728930A (en) * | 2013-12-23 | 2015-06-24 | 珠海格力电器股份有限公司 | Air conditioning system and control method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2005201517A (en) * | 2004-01-15 | 2005-07-28 | Matsushita Electric Ind Co Ltd | Refrigerator |
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| US3759053A (en) * | 1971-12-15 | 1973-09-18 | Westinghouse Electric Corp | Air control for fresh food compartment quick chill operation |
| CN1743775A (en) * | 2005-09-23 | 2006-03-08 | 海信集团有限公司 | Air-cooled variable frequency refrigerator and its control method |
| CN103363622A (en) * | 2013-07-01 | 2013-10-23 | 广东美的制冷设备有限公司 | Air conditioner with power tap positions and air conditioner power control method |
| CN104728930A (en) * | 2013-12-23 | 2015-06-24 | 珠海格力电器股份有限公司 | Air conditioning system and control method thereof |
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| CN105758073A (en) | 2016-07-13 |
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